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7495 Feynman (1995 WS4)
Classification: Main-belt Asteroid          SPK-ID: 2007495
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628396516561649 3.8467e-08  
a 2.803438894914665 1.3089e-08 au
q 2.346927881827417 1.0868e-07 au
i 6.776608377151896 3.5859e-06 deg
node 252.6614164962913 4.1611e-05 deg
peri 243.7932021231605 4.4017e-05 deg
M 44.56131412071699 1.4403e-05 deg
tp 2458988.277924502641
(2020-May-18.77792450)
6.7976e-05 TDB
period 1714.490442810573
4.69
1.2008e-05
3.288e-08
d
yr
n .2099749237504353 1.4706e-09 deg/d
Q 3.259949908001913 1.5221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1386  
   data-arc span      15159 days (41.50 yr)  
   first obs. used      1979-08-15  
   last obs. used      2021-02-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51462  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:46:16  

Additional Information
 Earth MOID = 1.37032 au 
 Jupiter MOID = 1.85106 au 
 T_jup = 3.294 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.26   n/a E2021B10  
diameter diameter 7.059 km 2.630 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.078   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7495 Feynman (1995 WS4)          Discovered 1995-Nov-22 by Klet at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1995 WS4 = 1986 WW6 = 1992 BS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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